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JPS4717602

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DESCRIPTION JPS4717602
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a connection diagram showing an embodiment
of the present invention, wherein H1... H4 is a tape player head, D1... D4 is a first diode, and D5,
D6 are The diode of 2 and FF indicate flip-flop circuits. -3 real opening 47-17602 (2)
[Detailed description of the invention] There are many so-called four-train stereo systems in
which the speakers are distributed from side to side and back and forth, and predetermined
hoarseness is emitted from the respective speakers so that a sense of presence can be obtained.
1131 I'm coming. This 4-channel stereo source and 1 are recorded in a single soap, and 6 are
dusty real fjl & '4 provided. However, this four-channel stereo i-so + conflict) The number of
people on the market is also small. 1る。 In the present invention, for example, four channels
are connected to the left and right speakers at the time of month 1 or i. Improvement of the
equipment 1 1 7 7 IJ] conversion i ′ ′ 1 (, ,, '' equipment to introduce 1 f / "Ffr" + 11 · · · · · · · of
the other power to the right front and rear speakers respectively It is about +: 1, the purpose of
the present invention v, 1 Chi '4 · North and l! The car stereo snow used in layers is a fine moon
1 inch a · 1 f-Q) -44 & 4 replacement device to provide 6 · 1 f 1 other 8 1. 1 r 'of 8 alternatives
The target is to use the h-voice signal from the head without using a rotary switch or a h-contact
switch (such as a step 1 toss 1) so that noise is generated by lifting etc. The point 1111 of the
present invention is to provide a switch 1 jk I 11 which does not contaminate the contacts and
cause a failure. The detonation V (the other object of the present invention is to reduce the 11x
(l-space 2-4-1 / 7 乙 02-o3 of the entire device, eg switching can be incorporated in the printed
circuit board with the amplifier It is in the point of providing an apparatus. Hereinafter, one
embodiment of the present invention will be described based on the drawings. The drawings
show the connection of the present invention, and (#I (1) 2) (1) 3) (7/4) show the heads provided
in the tape player. These heads are usually housed in the same gold case to form a so-called fourchannel head. ((: '1) ((? 2) (C'5) ((, 'a) is a coupling capacitor, which is connected to the other
terminal of the head, one end of which is connected to the ground. (771) (D2) (1) 5) (1) 4) has its
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cathode respectively connected to the coupling capacitor (C1) ... (Ca) K-connected diode, (6) (R4)
( Rs) (Rs) is a resistor having one end connected to the power source (E) and the other end
connected to the cathode of the diode (I) 1)... (D4), (R2) (Rs) (R6) (R2) R7) is a resistor having one
end connected to the cathode of the diode (l), ... (D4) and the other to the ground, and the above
resistor (R): ... (7?
8) a Each of the above diodes (I) 1),..., (1) a) cathode voltage power supply (E) has approximately
the same resistance value, and each resistance of the above (R 1),. A potential close to half of the
voltage is applied. (R9) · · · (R12) d One end of the diode (Dl) · · · (D4) is connected to one end of
the diode, and the other end is grounded via the capacitor (C5) (C'6) Resistance of these resistors(R9) ... (/? 12) i + each approximately equal one is used. (C7)... (C10) Id A coupling capacitor
connected at one end thereof to the anode of an ode (ZJt) ··· (D4) and the other end is a coupling
capacitor (C11) .. ((1 ', 14) are connected to output terminals (CR 1)... (CR 4) K, respectively. (D5)
(D6) is a second diode which is turned on when the ti circuit is used for two channels, and one
diode (D5) is connected to the coupling capacitor (C7) with the (C11). The node is connected to
the node, and the anode is connected to the node of the -F coupling capacitors (C9) and (013). °
nose wear # i pommy = mortar, if ,. -2 啼 → ←-e e 鯰 to kiss--倹-軛 1 発 −-ー ー 輌-1-1 + ゞ # ゞ
"ミ" "-4 L 4! L4 true (9) throat-μ-Y Y 4- μm 1 hair resistance 7--t-or the other diode (/ J6)
connection of the castorto Toi cup-ring capacitor (C8) and (C'12) In terms of point, the father's
anode is connected to the connection point between the manual coupling capacitor (C'1o) and
(C14). (/ (13) manual-power supply CE) The other end is a connection point of a manual coupling
capacitor ((: '7) and (C + 1) e, and a lead of a diode (/ Js). Connect ←, CR + 4) Connect one end to
the connection point of the coupling capacitor (r, '7) and (C ++) and the other end to ground F
female resistance, (/ US), one end manual power supply (2) Arrange the other fortune coupling,
(t-1), the connection point between the dacon anchor (C8) and (('+2)' while the resistance
connected to the cathode of the diode (D6), (R16) Is a resistor formed by connecting one end to
the connection point of earth B [: power tubbling capacitor (C8) and (C12) ′ ′ j and the other
part to the ground, and the above-mentioned resistance (R13)... (R16) ii all have approximately
equal resistance value 1, 1 above these resistances Force.
Tubing capacitor (C7) I! : The connection point with (C11) and the connection point with the
coupling capacitor (C8) and ((1'12)) The cathode of the straw diode (R5) and (R6) is almost half
of the turtle pressure. Dynamic pressure has been set. (Rly) ('R1s) Respectively, these two
resistances are resistances connected to the anode of the diode (I) 5) (1) 6) and the other end to
the ground via a capacitor (c 15). The values are made approximately equal. (FF) F2 A wellknown flip-flop path surrounded by a chain line (Rt9), a resistor to (R2s), (C '+ 6) (C + 7) is a
capacitor, (7'r +) (7y2) if) The transistor is (Z77) (R8) kl daint. Then, the collector of one
transistor (T, +) which can be a flip-flop circuit (,% '/ =') nio is connected to m through the resistor
(R26) to the anodes of the diodes (I ha) and (R2) The connected resistors (R9), (R + o) and G are
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connected to the other power connection point. The resistor of the other transistor (1'r2) in the F flick flop circuit has one end connected to the anodes of the -F diodes (R3) and (R4) via a
resistor (R27). ) And (R12) are connected to the other connection point. (Yl) is a switch of 2
channels and 4 channels. This switch is connected to contact C2C1j 佃 IJPC as shown in the
figure, and -rtr11 sol 770'77 '[g4 path (/' F) becomes active] , Fork (4 (, 'h) 倶 J--糺 diode (1) 5) (I)
6) "γ note &' (= resistance (phylo) (# 1 each connected at its 1 'end) (# + S) The other power
connection point is selected to be ground via eight (R28) (R29), F resistances (R28) and (#; + o)
#M, a and two. The resistance (#sn) formed by connecting the other end to the 1a source (l'd) is
connected to the switch (SJ11) to the contact (2C1l) 14-in the case of the above diode 1) (IJ5)
and (IJ) a) /) direct extension (E) voltage minus 1) Ete diode 2, (D5) (I) 6) ON shape !!! 4Ff7 also
works to hold p is also. ・ It is a normal condition (PLl) (PL2) l / dicator lamp, and it is an
operating state of 1 note Fritz flossov circuit (l ° 'F). It is an indicator lamp for displaying the
operation state of the channel in the second channel to be described later, and (/ 'L3) for
displaying the operation state of the Vi4 channel.
Further, (cp) is a contact piece, and (, 5W2) it push button switches, all of which perform the
channel switching operation in the two channels. The operation of the apparatus of the present
invention configured as described above will be described below. First, the state in which the -E
switch (SW1) is connected to the contact (2C1l) will be described. The cathode of the diode (Ds)
(1) 6 has the above-mentioned resistance (/? A voltage close to about half of the voltage of the
power supply (E) is always applied by [)... (R16). Here, the switch jW,, (SW *) are connected to the
contact (20 ′ ′) side and f ′ ′! −9 ′ j io) ′ (1, 5) (D 6), 7 / −) K K n resistance (Rso) (R 2
s) (and (R 17) and (R 18 respectively) supply voltage i The potential 1-relationship between the
anode and the cathode of (D6) is as high as the anode and the cathode is low. Thus, the diodes
(Ds) and (I) 6) are both turned on, and are held connected to the output terminals (CH1), (Cox)
and (Ch2) and (Ch4). Here, considering the above diodes (1) 1)... (D4), all of these diodes are
divided by the resistors (R1). A potential close to half is observed. As is well known in the manual
flip flop circuit (FF), when one transistor is on, the other transistor is off [7], and now the
transistor (7 ', +) is on. And consider when the transistor (Tr2) is off. Since the transistor (1r1) is
in the on state, the collector is kept close to the ground potential, and accordingly the indicator
lamp (/ '!, 2) is turned on and the indicator 4 is turned on. The anodes of auto (1) and (# 2)
'winter i', 1 are grounded to ground via resistors (# 26) and (R9) (Rlo), respectively. Considering
the potential relationship between the anode of the diode (1) and the anode of the (1); +) at this
time, the cathode node becomes high and the anode node becomes low. Therefore, all the diodes
(lha) (/ J2) are maintained in the off state VK, and the "4" signals from the heads (/ N) and (R2)
are cut off here. On the other hand, the transistor (7'r2) is off, so that a voltage close to the
power supply voltage is applied to the anode of the diode (IJs) (Iia) via the resistors (R27) and
(R12) respectively. .
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Considering the potential relationship between the diode (D6) and the anode and cathode of (ha)
at this time, the anode weir is high and the cathode side is low 50. Therefore, all the diodes (Ds)
(Da) are turned on, and the signals from the heads (Hs) (Ra) are respectively connected to one of
the coupling capacitors ((? 5) Through (Ca) and this diode (Ds) (I) 4), and further through the
crimping capacitor (C 'q) (C 135 and (C 1 o) (C' + a), the output terminal (C 'Hs) (CRa) has been
sent out. Thus, in this case, as described above, since both the diodes r (Ds) (R6) are turned on,
the signal from the head (R3) is output via the diode (R5) and the coupling capacitor (C11) The
signal from the head (R4) is sent to the output terminal (CB2) via the diode (R6) and the coupling
capacitor (C '+ 2) at the end I'fl: (,' H1). Therefore, the signal from the output terminal (CD1) is to
the left front, the signal from the output terminal (CH2) to the speaker to the right front, the
signal from the output terminal (CBS) to the speaker to the left rear, and the output terminal
When the signal from (C # 4) is reproduced from the right rear speaker K, the signal from the
head (Tsubo 3) is from the left front and left rear speakers and the signal from the head (/ 74) is
right The sound is reproduced from the front and right rear speakers, respectively, and so to
speak, n-walls on both sides of the person of the km are f11 created 7'I like a fi 11 produced, so
that it can be felt like listening with a so-called headphone. Next, connect the switch (desired 1)
to the contact (2CII) side and keep the 4 ° f9, and if the pushbutton switch (ff'2) is shorted
manually to 1 of the contact piece by the tape end or manually operate the above The "flinofffloss" path is reversed in a known manner, with the transistor (Tr +) turned off and the transistor
(7'r2) turned on. If the state of conduction of the audio signal in this state is explained by
analogy, the anode of the diode (I) (I) 2) is supplied with a potential close to the power supply
voltage, and the diode (I) 3) The anode of (I) 4) is supplied with a potential close to the ground
potential. Therefore, the potential relationship between the anode and the cathode of each diode
at this time is higher in the 7-note side of the diodes (7J1) and (D2), and the diode (I)! 1) (In the
case of Nori, the kado side is high and is off.
Therefore, in this state, the signal of the head (B1) is taken out to the output terminal (Chl)
through the coupling capacitor (C1), the diode (I) 1 and the cambing capacitors (C7) and (C ++).
The signal of (R2) is drawn out to the one day terminal (C # 2) via the coupling capacitor (C2),
the diode (1) 2 and the coupling capacitors (C8) and (C12). At the same time, the signal from the
soil 4 head (I) is the signal from the output terminal (C77B) K via the diode (I) 5 and the coupling
capacitor (1 '15), and the signal from the head (R2) The signal is taken out to the output terminal
(C'Ha) through the diode (B6) coupling capacitor (C14), and finally the signal from the head (B1)
is from the left front and the left back, and from the head (R2) Signals are reproduced from the
front right and the rear right. Therefore, every time the push button switch (SIF2) 'is suppressed
as described above (the signal of the channel (4, 4) composed of the heads (B1) and (B2) and the
signal of the channel CB> composed of the heads (B3) and (B4) are switched be able to. Next, the
case where the switch (yl) is switched to the contact (4Ch) will be described. When the switch
(SHl) is connected to the contact point (4 (, '#) 5ift), the indicator lamp <PF3) is grounded via the
resistor (R29), and the light turns on. Emitters of (PF) two tigers // stas (7 ', +) and (7r2) float
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from the ground and tl. Therefore, this circuit does not operate, and both of the collector
potentials of the respective transistors (7'ri) (1'r2) + me. It is close to the voltage, and the
potential close to the power supply voltage is given to the anode of each of the diodes (1), 1 ', ...
(1) a. The above-mentioned respective diodes (1 no)... (// 4) to which the potential of about half
of the power supply voltage is given to the cathode side on the cathode side are turned on. The
resistance (6 17) (R 18) and (6 28) to the anode side of the diode (D 5) (I) 6), which has a
potential close to about half of the power supply voltage on its canrt side with this function.
(R29) to ground, the potential relationship between the anode and the cathode of the two diodes
is high at the cathode and low at the anode, and both are in the off state. Therefore, the signals
from the heads (B1) to (H4) pass through the diodes (D1) to (D4) and appear as they are on the
output terminals (C1i1) to (CB). A predetermined sound predetermined in advance is emitted
from each of the speakers provided on the left and right front and rear, and it becomes possible
to listen to the 4-channel stereo.
In the present invention, as described above, a diode is connected to the head provided for each
track, and the audio signal of each track is selected by appropriately applying pressure to this
diode and applying a reverse direction, and Since a second diode is provided at the rear end of
the diode to connect and open each track as needed between the tracks, when using a 4-channel
stereo tape, it is used as a 4-channel stereo as it is The audio signal circuit can be electronically
switched to introduce one power channel to the left-rear speaker and the other channel to the
right front and rear speakers when using a two-channel stereo tape. Yes, as described at the
beginning of this specification? When this device is used in a car stereo kite, it is possible to
provide a switching device that does not generate noise due to vibration or the like, or damage
the contacts to cause a failure. Also, by incorporating this device in the same flint board as the
amplifier, the practical effect of using a superior space factor, and using a rotary plate, a rotary
switch, a slide switch, etc. Can also be expected. 4;ゲ
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